540546644985 has 32 divisors (see below), whose sum is σ = 867834528768. Its totient is φ = 287305613760.

The previous prime is 540546644969. The next prime is 540546645031. The reversal of 540546644985 is 589446645045.

It is a happy number.

It is not a de Polignac number, because 540546644985 - 2⁴ = 540546644969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13201354 + ... + 13242236.

It is an arithmetic number, because the mean of its divisors is an integer number (27119829024).

Almost surely, 2^540546644985 is an apocalyptic number.

It is an amenable number.

540546644985 is a deficient number, since it is larger than the sum of its proper divisors (327287883783).

540546644985 is a wasteful number, since it uses less digits than its factorization.

540546644985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43885.

The product of its (nonzero) digits is 82944000, while the sum is 60.

Adding to 540546644985 its sum of digits (60), we get a palindrome (540546645045).

The spelling of 540546644985 in words is "five hundred forty billion, five hundred forty-six million, six hundred forty-four thousand, nine hundred eighty-five".